cros_ec: Implement I2C pass-through

[karo-tx-uboot.git] / include / cros_ec.h

diff --git a/include/cros_ec.h b/include/cros_ec.h
index 1b7c62090595b846e8a253b357812a33f0e8138d..1e4d8db96b7889e32586c665e001513523357b48 100644 (file)
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -501,4 +501,18 @@ int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config);
  */
 void cros_ec_check_keyboard(struct cros_ec_dev *dev);
 
+/*
+ * Tunnel an I2C transfer to the EC
+ *
+ * @param dev          CROS-EC device
+ * @param chip         Chip address (7-bit I2C address)
+ * @param addr         Register address to read/write
+ * @param alen         Length of register address in bytes
+ * @param buffer       Buffer containing data to read/write
+ * @param len          Length of buffer
+ * @param is_read      1 if this is a read, 0 if this is a write
+ */
+int cros_ec_i2c_xfer(struct cros_ec_dev *dev, uchar chip, uint addr,
+                    int alen, uchar *buffer, int len, int is_read);
+
 #endif